Chrysler Sebring, Stratus sedan, Sebring Convertible. Manual - part 745

There are different PAG oils available, and each

contains a different additive package. Use only
refrigerant oil of the same type as recommended to
service the refrigerant system (always refer to the
specification tag included with the replacement
A/C compressor or the underhood A/C system specifi-
cation tag).

The Sanden TRS-090 A/C compressor used in this

vehicle is designed to use ND-15 PAG refrigerant oil.
Use only this type of refrigerant oil when servicing
the A/C compressor for the 2.0L and the 2.4L Turbo
engine.

The Visteon HS-15 A/C compressor used in this

vehicle is designed to use VC-46 PAG refrigerant oil.
Use only this type of refrigerant oil when servicing
the A/C compressor for the 2.7L and the 2.4L NA
engine.

OPERATION

After performing any refrigerant recovery or recy-

cling operation, always replenish the refrigerant sys-
tem with the same amount of the recommended
refrigerant oil as was removed. Too little refrigerant
oil can cause A/C compressor damage, and too much
can reduce A/C system performance.

PAG refrigerant oil is more hygroscopic than min-

eral oil, and will absorb any moisture it comes into
contact with, even moisture in the air. The PAG oil
container should always be kept tightly capped until
it is ready to be used. After use, recap the oil con-
tainer immediately to prevent moisture contamina-
tion.

STANDARD PROCEDURE

REFRIGERANT OIL LEVEL

WARNING: Review safety precautions and warnings
in this group before performing this procedure
(Refer to 24 - HEATING & AIR CONDITIONING/
PLUMBING - WARNINGS) and (Refer to 24 - HEAT-
ING & AIR CONDITIONING/PLUMBING - CAUTIONS).
Failure to follow the warnings and cautions could
result in possible personal injury or death.

CAUTION: The refrigerant oil in the R-134a A/C sys-
tem is unique depending on the A/C compressor
used. Use only PAG oils that are designed to work
with R-134a refrigerant and the A/C compressor in
the vehicle. Always refer to the underhood A/C Sys-
tem Specification Label for the correct oil designa-
tion. The oil container should be kept tightly
capped until it is ready for use and then tightly
capped after use to prevent contamination from dirt
and moisture. Refrigerant oil will quickly absorb

any moisture it comes in contact with, therefore,
special effort must be used to keep all R-134a sys-
tem components moisture-free. Moisture in the
refrigerant oil is very difficult to remove and will
cause a reliability problem with the A/C compressor.

NOTE: Most reclaim/recycling equipment will mea-
sure the lubricant being removed during recovery.
This amount of lubricant should be added back into
the system. Refer to the reclaim/recycling equip-
ment manufacturers instructions.

It will not be necessary to check the oil level in the

A/C compressor or to add oil, unless there has been
an oil loss. An oil loss may occur due to a rupture or
leak from a refrigerant line, a connector fitting, a
component, or a component seal. If a leak occurs, add
30 milliliters (1 fluid ounce) of refrigerant oil to the
refrigerant system after the repair has been made.
Refrigerant oil loss will be evident at the leak point
by the presence of a wet, shiny surface around the
leak.

Refrigerant oil must be added when a receiver/

drier, A/C evaporator or A/C condenser is replaced.
See the Refrigerant Oil Capacities chart. When an
A/C compressor is replaced, the refrigerant oil must
be drained from the old compressor and measured.
Drain all of the refrigerant oil from the new A/C com-
pressor, then fill the new compressor with the same
amount of refrigerant oil that was drained out of the
old compressor.

REFRIGERANT OIL CAPACITIES

Component

ml.

oz.

Total System Fill

150

A/C Condenser

A/C Evaporator

Receiver/Drier

A/C Compressor

Drain and measure
the oil from the old
compressor - see
text.

SERVICE PORT VALVE CORE

DESCRIPTION

Two refrigerant system service ports are used to

charge/recover/recycle/evacuate and test the air con-
ditioning refrigerant system. Unique service port cou-
pler sizes are used on the R-134a system to ensure
the refrigerant system is not accidentally contami-
nated with R-12 refrigerant or refrigerant system
service equipment.

PLUMBING

24 - 79

REFRIGERANT OIL (Continued)

The high side service port (Fig. 29) is located on

the receiver/drier. The low side service port is located
on the suction line, near the right strut tower. Both
the high side and low side A/C service port valve
cores are serviceable.

Each of the service ports has a threaded plastic

protective cap installed over it from the factory. After
servicing the refrigerant system, always reinstall
both of the service port caps.

REMOVAL

WARNING: Refer to the applicable warnings and
cautions for this system before performing the fol-
lowing operation (Refer to 24 - HEATING & AIR
CONDITIONING/PLUMBING - WARNINGS) and (Refer
to 24 - HEATING & AIR CONDITIONING/PLUMBING -
CAUTIONS). Failure to follow the warnings and cau-
tions could result in possible personal injury or
death.

(1) Remove the protective cap from the service port

(Fig. 30).

(2) Recover the refrigerant from the refrigerant

system (Refer to 24 - HEATING & AIR CONDITION-
ING/PLUMBING

STANDARD

PROCEDURE

REFRIGERANT SYSTEM RECOVERY).

(3) Using a Schrader-type valve core tool, remove

the valve core from the service port.

(4) Install a plug in or tape over the opened ser-

vice port(s).

INSTALLATION

(1) Lubricate the valve core with clean refrigerant

oil prior to installation. Use only refrigerant oil of the
type recommended for the A/C compressor in the
vehicle.

(2) Remove the tape or plug from the service port.

CAUTION: A valve core that is not fully seated in
the A/C service port can result in damage to the
valve during refrigerant system evacuation and
charge. Such damage may result in a loss of sys-
tem refrigerant while uncoupling the charge adapt-
ers.

(3) Using a Schrader-type valve core tool, install

and tighten the valve core into the service port(s).

(4) Evacuate the refrigerant system (Refer to 24 -

HEATING & AIR CONDITIONING/PLUMBING -
STANDARD PROCEDURE - REFRIGERANT SYS-
TEM EVACUATE).

(5) Charge the refrigerant system (Refer to 24 -

HEATING & AIR CONDITIONING/PLUMBING -
STANDARD PROCEDURE - REFRIGERANT SYS-
TEM CHARGE).

Fig. 29 A/C System Service Ports - Typical

1 - CONDENSER FITTING
2 - LIQUID LINE
3 - RECEIVER/DRIER
4 - HIGH SIDE SERVICE PORT
5 - MOUNTING BRACKET
6 - INSULATOR (2)
7 - RETAINER BRACKET
8 - TAPPING PLATE
9 - LOW SIDE SERVICE PORT
10 - A/C SUCTION LINE
11 - SUCTION LINE FITTING

Fig. 30 A/C Service Port-Typical

1 - PROTECTIVE CAP
2 - SERVICE PORT
3 - VALVE CORE

24 - 80

PLUMBING

SERVICE PORT VALVE CORE (Continued)

NOTE: The protective cap helps aid in service port
sealing and helps protects the refrigerant system
from contamination. Remember to always reinstall
the protective cap onto the service port when refrig-
erant system service is complete.

(6) Install the protective cap onto the service port.

SUCTION LINE

DESCRIPTION

The suction line (Fig. 31) is the refrigerant line

that goes from the A/C expansion valve to the A/C
compressor. The low side service port is integral to
the suction line.

CAUTION: Use only O-ring seals specified for the
vehicle. Failure to use correct O-ring seal will cause
the refrigerant system connection to leak.

The suction line has no serviceable parts except

the rubber O-ring seals, the service port valve core
and it’s protective cap. The O-ring seals used on the
connections are made from a special type of rubber
not affected by R-134a refrigerant. The O-ring seals
must be replaced whenever the suction line is
removed and installed.

If the suction line is found to be leaking or is dam-

aged, it must be replaced.

REMOVAL

(1) Disconnect and isolate the negative battery

cable.

(2) Recover the refrigerant from the refrigerant

system (Refer to 24 - HEATING & AIR CONDITION-
ING/PLUMBING

STANDARD

PROCEDURE

REFRIGERANT SYSTEM RECOVERY).

(3) Remove the bolt that secures the suction line to

the A/C compressor (Fig. 32).

(4) Disconnect the suction line from the A/C com-

pressor and remove and discard the O-ring seal.

(5) Install plugs in, or tape over the suction line

fitting and the compressor port.

(6) Remove the bolt that secures the refrigerant

line retainer bracket to the right shock tower.

(7) Remove the suction line from the refrigerant

line retainer bracket.

(8) Remove the nut that secures the refrigerant

line tapping plate to the A/C expansion valve (Fig.
33).

(9) Disconnect the suction line and the liquid line

from the A/C expansion valve and remove and dis-
card the O-ring seals.

(10) Install plugs in, or tape over the suction and

liquid line fittings and both expansion valve ports.

(11) Remove the suction line from the engine com-

partment.

INSTALLATION

(1) Position the suction line into the engine com-

partment.

(2) Remove the tape or plugs from the suction and

liquid line fittings and both expansion valve ports.

(3) Lubricate new rubber O-ring seals with clean

refrigerant oil and install them on the liquid and suc-
tion line fittings. Use only the specified O-rings as
they are made of a special material for the R-134a
system. Use only refrigerant oil of the type recom-
mended for the A/C compressor in the vehicle.

Fig. 31 Liquid Line - Typical

PLUMBING

24 - 81

SERVICE PORT VALVE CORE (Continued)

(4) Connect the liquid line and suction line fittings

to the A/C expansion valve.

(5) Install the suction line into the refrigerant line

retainer bracket.

(6) Position the refrigerant line retainer bracket

onto the right shock tower and install the bolt
securely.

(7) Remove the tape or plugs from the suction line

fitting and compressor port.

(8) Lubricate a new rubber O-ring seal with clean

refrigerant oil and install it on the suction line fit-
ting. Use only the specified O-ring as it is made of a
special material for the R-134a system. Use only
refrigerant oil of the type recommended for the A/C
compressor in the vehicle.

(9) Install the suction line onto the A/C compres-

sor.

(10) Install the bolt that secures the suction line to

the A/C compressor. Tighten the bolt to 22 N·m (16
ft. lbs.).

(11) Reconnect the negative battery cable.
(12) Evacuate the refrigerant system (Refer to 24 -

HEATING & AIR CONDITIONING/PLUMBING -
STANDARD PROCEDURE - REFRIGERANT SYS-
TEM EVACUATE).

(13) Charge the refrigerant system (Refer to 24 -

HEATING & AIR CONDITIONING/PLUMBING -
STANDARD PROCEDURE - REFRIGERANT SYS-
TEM CHARGE).

Fig. 32 Suction Line - A/C Compressor

1 - A/C DISCHARGE LINE
2 - A/C SUCTION LINE
3 - A/C COMPRESSOR
4 - BOLT (4)

Fig. 33 Suction Line - Tapping Plate

1 - NUT
2 - TAPPING PLATE
3 - A/C EXPANSION VALVE
4 - A/C LIQUID LINE
5 - A/C SUCTION LINE

24 - 82

PLUMBING

SUCTION LINE (Continued)

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